Chinese OCR'd PDF conversion to word.

I have a PDF which is an IMAGE not a regular PDF. I need to get it converted into a word document via some sort of OCR software. The image is in Chinese and is a 100 meg file (it can be FTP'd to allow for easier access). We want to convert it into word and make it into a more managable file. Please let me know what sort of accuracy you think can be achieved also..